Culberson, William Louis (1966). "Chemistry and taxonomy of the lichen genera Heterodermia and Anaptychia in the Carolinas". The Bryologist. 69 (4): 472–487. doi:10.2307/3240580. JSTOR3240580.
Mongkolsuk, Pachara; Meesim, Sanya; Poengsungnoen, Vasun; Buaruang, Kawinnat; Schumm, Felix; Kalb, Klaus (2015). "The lichen family Physciaceae in Thailand—II. Contributions to the genus Heterodermia sensu lato". Phytotaxa. 235 (1): 1–66. doi:10.11646/phytotaxa.235.1.1.
jstor.org
Culberson, William Louis (1966). "Chemistry and taxonomy of the lichen genera Heterodermia and Anaptychia in the Carolinas". The Bryologist. 69 (4): 472–487. doi:10.2307/3240580. JSTOR3240580.